Barry Friedman, The Eclectic Eye," a single-owner sale at Christie's this spring is going to be one of the most talked-about event in the collectible design world. For nearly five decades, Friedman has established himself as one of New York’s leading art dealers, responsible for creating trends and for discovering new talents. Now that he is retiring, the collection will be sold. Here are the pieces by Wendell Castle, a key figure of the American Studio Movement, which Friedman has represented at his gallery during recent years.